Motor-propeller.



13m: @PY

' L- E. VOGEL.

MOTOR PROPBLLBR.

'APPIIOATION FILED 1102222, 1912-.

1,070,089, Patented Aug. 12, 1913.

COPY

UNITED STATES PATENT oEEIoE.A

LOUIS E. VOGEL, OF MILWAUKEE, WISCONSIN, ASSIGN'OR TO WISCONSIN MACHINERY AND MANUFACTURING GO., 0F MILWAUKEE, WISCONSIN, A CORPORATION 0F WISCONSIN.

MOTOR-PROPE'LLER.

Specification of Letters Patent.

Patented Aug. 12,1913.

Application tiled November 22, 1912. Serial No. 732,841.

To "all 'whom if may concern.'

Be it-known that l, Lotus E. VOGEL, a cit-izcn of *the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin. have invented new and useful Improvements in Motor-Propellers, of which the foliowing is a description, refer- `ence being had to the accompanying drawings, which are a part of tthis specification.

This invention Tela-tes to motor propellers for boats and especially to Vthat tytpe of mo- 'tor propeller which is detachable and portable. and capableo-f adjustment to row boats and other small boats of various'types.

An 'object -of the invention is to facilitate adjustment -o'f the clamping means by which the motor propeiler is att-ached to 'the stern of the boat, permitting such clamping means toassume a greater or lless degree of inclination 'to tit the sternof the boat without altering the proper position of thc-other parts oft'he device, an object hei-ng to accomplish t'he adjustment -of 'the clamping means at the upper end thereof where the adjustmentc'la'mps vmay be accessible Without the necesfor leaningt-o'ver the-edge ofthe boat. Another object of the invention is -to improve upon tlhe construction of the lnotor shaft whereby it may be more readily lengt-llened or shortened in the adjustment of the device to raise, or lower the propeller' member with relation to the engine member'. With the 'abo-ve and other objects in 'View the invention consists in the motor propeller as herein claimed and all equivalents.

Referring to the accompanying fdrawings in which like characters of reference indicate the same parts in the ditt'erent views: ligure l1 is a central sectional View of a motor propeller constructed in accordance with this invention; and Fig. 2 is a transverse sectional view thereof on the line 2 2 of Fig. 1. ln these drawings 10 indicates an engine casing in the cylinder portion of which is littcd a pistou 11 as usual connected by a connectingr rod 12 with the crank of a-vertically disposed crank shaft 13. A flywheel 14 is fixed on the upper end of the crank shaft and is provided with a knob 15 by means of which it may be turned by hand for starting the engine. A gasolene reservoir 16 is mounted on the casing beneath the fly wheel and opposite the cylinder and has the usual carbureter connection, not shown, with the cylinder of the engine. The casing 10 at the lower bearing of the vertical crank shaft has securely clamped to it-a 'tubular sleeve 17 which together with a tube 18 telescoping within it constitutes a casing for the engine shaft connecting the enginewith Athe propeller. The lower end of sleeve 17 is spl-it and its parts are held together by a clamping bolt 19 to clamp vit securely lupon the ltelef-icopi11g tube 18 and lock the latter in its adjustments. The sleeve 17 near its lower end' is provided with oppositely positioncd bosses 2() into which are threaded pivot screws 21 forming pivotal connections for the ends of a pair oit' parallel arms 22 extending from 'the lower end of a clamping bracket-23 which is hook-shaped at its upper end to pass over the edge of the stern of the boat and is provided with a thumb screw 24 for clamping the device to the stern of the boat. At its upper end the clamping bracket 23 has a pair of rearwardly extending. project-lons containing arc-shaped slots 25.

Clamping screws 26 pass through the slots 25 and Into the caslng 10 to clamp the bracket 23 in its pivotal adjustments on the 18 :istted a bearing 27 to which is securedl a gear casing 28 having the propeller shaft 29 journaled therein with the propeller 30 secured on the .projecting rear end thereof. A beveled pinion 31 on the propeller shaft meshes with a beveled pinion 32 on the lower end of the motor shaft 33 which is journaled through bearing 27 and extends upwardly fitting within a tubular sleeve 34 which surrounds the lower portion of the crank shaft 13. The lower portion of crank shaft 13 has one half out away leaving it of semi-cylindrical shape in cross section and the upper portion of motor shaft 13 is likewise cut away so that the two half sections overlap each other to constitute an adjustable driving connection between the crank shaft and the motor shaft-,the sleeve 34 preventing displacementof such overlapping portions. When the clamping screw 19 is loose the telescoping tube 18 may be drawn out of the sleeve 17 so as to extend the length of the device without disturbing the driving connection between the motorv shaft and the crank shaft of the engine.

The gear casing 28 is provided with the usual spring pressed pump plunger which is operated by a cam 36 on beveled pinion 3l and serves to force water through its valves 37 to the water jacket of the cylinder of the engine through a hose connection not shown.

A bearing bracket 38 is secured to the casing l() around the lower bearing of the crank shaft and a similar bearing bracket 39 is secured to the telescoping tube 18 and within tliese bearing brackets are journaled a steering post formed of telescoping sections 40 and al respectively with a clamping collar 42 to secure them in their adjustments. The lower member 41 of the steering post has a rudder 43 fixed on it and extending back of the propeller 30 as shown, while the upper end of steering post member has a segmental gear 44C tixed on it meshing with a segmental gear 45 loosely surrounding the lower bearing portion ot' t-he casing` l0 and having asocket in which is secured a tiller 46. then the adjustments of the end shaft casing are made to raise or lower the propeller corresponding adjustments are made in the steering post so that the rudder keeps its posit-ion relative to the propeller and in any adjustment of the parts their driving connection with the engine is maintained and the steering connection between the tiller and the rudder is also maintained.

ly means of this invention the engine shaft is made adjustable for raising or lowering the propeller with a. strong driving connection between its parts even at the 'Sgreatest extension adjustment by reason otl the said parts having their ends cut into half sections and fitting together in 'overlapping relation and held against displacement by the surrounding sleeve. lVith this invention also the pivotal adjustments of theI clamping bracket may be obtained by manipulating the clamping screws i6 above the edge of the boat so that there is no necessity l. A portable motor propeller, comprising an engine having vits vertical crank shaft half cut away at its lower portion, a sleeve on the engine casing surrounding the lower end of the crank shaft, a gear casing provided with a sleeve telescoping with the sleeve of the engine casing, a propeller mounted on the gear casing, a motor shaft journaled within the telescoping sleeve'and geared to the propeller and having its upper end half cut away and'overlapping'the out away portion of the crank shaft, a sleeve titting around the overlapping ends of the motor shaft and the crank shaft, and means for clamping the telescoping sleeves in their longitudinal adjustments.

2. A portable motor propeller, comprising an enginehaving a vertical crank shaft journaled within its casing, a tubular sleeve on the engine casing surrounding the lower end of the crank shaft, a gear casing vertically adjustably connected with the sleeve and having a motor shaft with an adjustable driving connection with the crank shaft, a propeller on the gear casing having a driving connection with the motor shaft, a brackethaving yoke arms pivotally connected to the tubular sleeve and provided at its upper end with a hook-like projection to engage the upper edge of the stern of a boat and also provided with a rearwardly extending slotted portion having an arc-shaped 'slot on the pivotal connection as a center,

and a clan'iping screw on the engine casing passing through the arc-shaped slot for clamping the bracket in its pivotal adjustments.

In testimony whereof, I atiiX my signature, in presence of two witnesses.

LOUIS E. VOGEL. Witnesses:

KATHERINE l'IoL'r, CmRA V. MUEHLBAGH. 

